Cisco Systems 3000 Series manual Cisco Catalyst Blade Switch 3020 for HP

Table 1 describes the Cisco Catalyst Blade Switch 3120 for HP switch module ports. Each external port has an associated LED.

Table 1 Cisco Catalyst Blade Switch 3120 for HP Port Descriptions

Port	Description
Ports 1 to 16	Internal Gigabit Ethernet 1000BASE-X downlink ports that connect to the
	blade enclosure.
Ports 17 to 18	Internal cross-connection ports that you can use to connect to a second
	switch in the blade enclosure through a backplane connector. You can
	configure these ports by using the Cisco IOS CLI. However, if the blade
	switches are stacked, these ports are disabled.
Ports 19 to 22	10-Gigabit Ethernet module slots for use with the Cisco TwinGig Converter
	Modules and Cisco X2 transceiver modules.
Ports 23 to 26	External 10/100/1000BASE-T copper Gigabit Ethernet uplink ports that
	support auto-MDIX and autonegotiation.
Internal 100BASE-T	The Ethernet management port (Fa0) is used only for switch module
Ethernet port	management traffic, not for data traffic. It is connected to the
	Onboard Administrator through the blade enclosure backplane connector.
	Traffic to and from this port is isolated from the switch ports. This port
	only supports autonegotiation with 100 Mb/s and full-duplex mode.
StackWise Plus ports	Stacking cable ports.
Console port	Switch module management port (RJ-45 connector).

Cisco Catalyst Blade Switch 3020 for HP

The Cisco Catalyst Blade Switch 3020 for HP is a 24-Gigabit Ethernet port, Layer 2+ switch module. Sixteen of the Gigabit Ethernet ports are internal 1000BASE-X downlink ports that connect to the blade enclosure. The other eight Gigabit Ethernet ports are external uplink ports that provide connections to other switches or routers. Uplink ports operate at 10/100/1000 M/ps if used as copper-based ports and operate at 1000 M/ps if small form-factor pluggable (SFP) fiber-optic modules are installed. See Table 2 for more detailed descriptions of the switch module ports.

6